first, gabby giffords in a senate hearing the appearance was brief but powerful. >> speaking is difficult but i need to say something important. v congress woman shot in the head two years ago, made an appeal for action. >> too many children are dying. too many children. we must do something. >> the murder of 20 school;xÑ children reignited the debate, today, in what will be a long battle over efforts to strengthen background checks on purchases and renew a ban on assault weapons. and told senators background checks would be a waste of time and money. >>zyn: you'll create an enormos federal bureaucracy, unfunded. they'll have to go through it. >> saying criminals won't go through background check autos criminals won't go to purchase gauns because there will be a background check. you miss that had point. i think it's basic. >> snorks i think you missed -- . >> order. order. >> i think you're missing... >> it was a contentious hearing. coming up at 6:00 we'll take you inside of a hearing in san francisco today. where congress members are talking about what needs to be done, we'll have th